linux-kernel - Re: cpuidle future and improvements

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Date:	Mon, 18 Jun 2012 21:00:44 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Colin Cross <ccross@...roid.com>
CC:	linux-acpi@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	Lists Linaro-dev <linaro-dev@...ts.linaro.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Amit Kucheria <amit.kucheria@...aro.org>,
	Deepthi Dharwar <deepthi@...ux.vnet.ibm.com>,
	"lenb@...nel.org" <lenb@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter De Schrijver <pdeschrijver@...dia.com>,
	Rob Lee <rob.lee@...aro.org>, rjw@...k.pl,
	Kevin Hilman <khilman@...com>, linux-next@...r.kernel.org
Subject: Re: cpuidle future and improvements

On 06/18/2012 08:15 PM, Colin Cross wrote:
> On Mon, Jun 18, 2012 at 1:40 AM, Daniel Lezcano
> <daniel.lezcano@...aro.org> wrote:
>> I propose to host a cpuidle-next tree where all these modifications will
>> be and where people can send patches against, preventing last minutes
>> conflicts and perhaps Lenb will agree to pull from this tree. In the
>> meantime, the tree will be part of the linux-next, the patches will be
>> more widely tested and could be fixed earlier.
> 
> My coupled cpuidle patches were acked and temporarily in Len's
> next/Linus pull branch, but were later dropped when the first pull
> request to Linus was rejected.  I asked Len to either put the coupled
> cpuidle patches into his next branch, or let me host them so people
> could base SoC branches off of them and let Len pull them later, but
> got no response.  If you do start a cpuidle for-next branch, can you
> pull my coupled-cpuidle branch:

No problem.

Thanks
  -- Daniel

> The following changes since commit 76e10d158efb6d4516018846f60c2ab5501900bc:
> 
>   Linux 3.4 (2012-05-20 15:29:13 -0700)
> 
> are available in the git repository at:
>   https://android.googlesource.com/kernel/common.git coupled-cpuidle
> 
> Colin Cross (4):
>       cpuidle: refactor out cpuidle_enter_state
>       cpuidle: fix error handling in __cpuidle_register_device
>       cpuidle: add support for states that affect multiple cpus
>       cpuidle: coupled: add parallel barrier function
> 
>  drivers/cpuidle/Kconfig   |    3 +
>  drivers/cpuidle/Makefile  |    1 +
>  drivers/cpuidle/coupled.c |  715 +++++++++++++++++++++++++++++++++++++++++++++
>  drivers/cpuidle/cpuidle.c |   68 ++++-
>  drivers/cpuidle/cpuidle.h |   32 ++
>  include/linux/cpuidle.h   |   11 +
>  6 files changed, 813 insertions(+), 17 deletions(-)
>  create mode 100644 drivers/cpuidle/coupled.c


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